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Session Timeouts

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

What are the issues (if any) of setting sessions to expire after an extended period of time as in 4-8 hours? I'm building an intranet app which is designed so that users will access it once in the morning and then leave it used, possibly, for hours at a time. I'm assuming that there aren't too many since

1) we're running it on a intranet
2) sessions are soley to retain state between requests
3) its not like a connection to the DB where you can conceivable run out

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